// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "net/dns/address_sorter.h"

#if defined(OS_WIN)
#include <winsock2.h>
#endif

#include "base/bind.h"
#include "base/logging.h"
#include "net/base/address_list.h"
#include "net/base/ip_address.h"
#include "net/base/test_completion_callback.h"
#include "testing/gtest/include/gtest/gtest.h"

#if defined(OS_WIN)
#include "net/base/winsock_init.h"
#endif

namespace net {
namespace {

    IPEndPoint MakeEndPoint(const std::string& str)
    {
        IPAddress addr;
        CHECK(addr.AssignFromIPLiteral(str));
        return IPEndPoint(addr, 0);
    }

    void OnSortComplete(AddressList* result_buf,
        const CompletionCallback& callback,
        bool success,
        const AddressList& result)
    {
        if (success)
            *result_buf = result;
        callback.Run(success ? OK : ERR_FAILED);
    }

    TEST(AddressSorterTest, Sort)
    {
        int expected_result = OK;
#if defined(OS_WIN)
        EnsureWinsockInit();
        SOCKET sock = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP);
        if (sock == INVALID_SOCKET) {
            expected_result = ERR_FAILED;
        } else {
            closesocket(sock);
        }
#endif
        std::unique_ptr<AddressSorter> sorter(AddressSorter::CreateAddressSorter());
        AddressList list;
        list.push_back(MakeEndPoint("10.0.0.1"));
        list.push_back(MakeEndPoint("8.8.8.8"));
        list.push_back(MakeEndPoint("::1"));
        list.push_back(MakeEndPoint("2001:4860:4860::8888"));

        AddressList result;
        TestCompletionCallback callback;
        sorter->Sort(list, base::Bind(&OnSortComplete, &result, callback.callback()));
        EXPECT_EQ(expected_result, callback.WaitForResult());
    }

} // namespace
} // namespace net
